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On July 16, Graham finally admitted to having lied to police and confessed to pushing him off the cliff during an argument.

In her confession, Graham told officers that she pushed her husband after he grabbed her: "He went to grab my arm and my jacket, and I said no, I'm not going to let this happen this time. So I let go and I pushed and he went over. And then I took off and went home."

A family friend of Johnson's, Tracey Maness, told local media that he was in love with Graham and excited about his wedding after a two-year courtship.

But his relatives suspected that Graham did not feel the same way, because she seemed aloof and appeared not to want to spend time with Johnson's family.

Johnson told his mother that Graham would change when they got married, Maness said.

"Nobody ever could have thought something like this could happen," she was quoted as saying.

Graham has pleaded guilty to second degree murder and remains in custody.